set terminal png size 1024,768
set output "umatrix2d.png"
set title "U Matrix"

set xlabel "Neuron"
set xtics 14

set ylabel "Neuron"
set ytics 14

set tic scale 0

set palette rgbformulae 22,13,10
set palette negative

set cbrange [0:1.0]
set cbtics 0.25
#unset cbtics

set xrange [0:14]
set yrange [0:14]

set view map

splot 'u_matrix2d.dat' matrix with image